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Mary Mcgrath — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Northampton-County, Pennsylvania
Our Model Tree links this Mary Mcgrath across the 1920, 1930 and 1940 US Censuses in Northampton-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 5-person household.
Age 65
b. ~1875
Female
Head
Born: Pennsylvania
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Northampton-County, Pennsylvania |
| Surname | McGrath |
| Given Name | Mary S. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Easton City |
| 1935 Residence (County) | Northampton |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Easton City |
| Est. Birth Year | ~1875 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Josephine Mcgrath | Daughter | — | 35 | ~1905 |
| Margaret Mcgrath | Daughter | — | 36 | ~1904 |
| Mary Mcgrath | Head | — | 65 | ~1875 |
| Edward Stacer | Other | — | 22 | ~1918 |
| Joseph Stacer | Other | — | 61 | ~1879 |
Census Appearances
1920
Northampton, Pennsylvania
Spouse, age 45
Northampton, Pennsylvania · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Northampton, Pennsylvania
Other, age 53
Northampton, Pennsylvania · implied b. ~1877 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Mary S |
| Relationship to Head | wife-H |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 25 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Northampton-County, Pennsylvania
Head, age 65
Northampton-County, Pennsylvania · implied b. ~1875 — 5 household members
| Surname | McGrath |
| Given Name | Mary S. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Easton City |
| 1935 Residence (County) | Northampton |
| Highest Grade | 7 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Mcgrath across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mcgrath
Head · 1940 · age 65 · b. ~1875 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Northampton-County, Pennsylvania
Open full size
1940 US Federal Census — Northampton-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03591-00440)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mabel R. Kleinhans | 65 | Wife | — | Pennsylvania |
| 2 | Eleanor L. Kleinhans | 16 | Daughter | — | New Jersey |
| 3 | Jennie T. Reese | 89 | Sister-in-law | — | Pennsylvania |
| 4 | Nicholas L. Trigiano | 46 | Head | Grocer | Pennsylvania |
| 5 | Anne L. Trigiano | 36 | Wife | — | New Jersey |
| 6 | Lucien L. Trigiano | 14 | Son | — | Pennsylvania |
| 7 | Joyce L. Trigiano | 11 | Daughter | — | New Jersey |
| 8 | Mary S. Mcgrath THIS PERSON | 65 | Head | — | Pennsylvania |
| 9 | Margaret M. Mcgrath | 36 | Daughter | Bookkeeper | Pennsylvania |
| 10 | Josephine L. Mcgrath | 35 | Daughter | — | Pennsylvania |
| 11 | Joseph J. Stacer | 61 | Brother | Trainman | Pennsylvania |
| 12 | Edward J. Stacer | 22 | Nephew | Clerk | Pennsylvania |
| 13 | Rowland R. Minick | 40 | Head | Printer | Pennsylvania |
| 14 | Martha M. Minick | 43 | Wife | — | Pennsylvania |
| 15 | Leroy C. Marsh | 38 | Head | Garage Helper | Pennsylvania |
| 16 | Bertha M. Marsh | 28 | Wife | — | Pennsylvania |
| 17 | Allene M. Marsh | 14 | Daughter | — | Pennsylvania |
| 18 | Leland L. Marsh | 11 | Son | — | Pennsylvania |
| 19 | Laura Stark | 57 | Head | — | New Jersey |
| 20 | Pierce D. Stark | 30 | Son | Carpenter | New Jersey |
| 21 | Thomas N. Holden | 46 | Head | Salesman | Pennsylvania |
| 22 | Florence A. Holden | 37 | Wife | — | Pennsylvania |
| 23 | Thomas N. Jr. Holden | 16 | Son | — | Pennsylvania |
| 24 | Robert E. Trimble | 37 | Head | Laborer | New Jersey |
| 25 | Mary E. Trimble | 37 | Wife | — | Pennsylvania |
| 26 | Martin H. Gutzweiler | 27 | Head | Electrical Worker | Pennsylvania |
| 27 | Frances E. Gutzweiler | 26 | Wife | Slip Inspector | Pennsylvania |
| 28 | Elaine F. Gutzweiler | 2 | Daughter | — | Pennsylvania |
| 29 | Alexander J. Nagurney | 23 | Head | Machinist | Pennsylvania |
| 30 | Helene M. Nagurney | 23 | Wife | Billing Clerk | Pennsylvania |
| 31 | James F. Sr. Shively | 30 | Head | Salesman | Pennsylvania |
| 32 | Elizabeth M. Shively | 29 | Wife | Slip Inspector | Pennsylvania |
| 33 | James F. Jr. Shively | 7 | Son | — | Pennsylvania |
| 34 | Betty Ann Shively | 5 | Daughter | — | Pennsylvania |
| 35 | Barbara F. Shively | 3 | Daughter | — | Pennsylvania |
| 36 | Elizabeth Riley | 44 | Head | — | Pennsylvania |
| 37 | William F. Riley | 16 | Son | Auto Mechanic | Pennsylvania |
| 38 | Robert J. Riley | 15 | Son | — | Pennsylvania |
| 39 | Elizabeth M. Riley | 13 | Daughter | — | Pennsylvania |
| 40 | Ferdinand Weiss | 90 | Father | — | Pennsylvania |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)